Of same place



(No Model.)

E. G. BIELEFELD.

GAS BURNER.

No. 365,899. Patented July 5, 1887..

. [a IUIlll-l l/lfdnesses.

UNITED STATES PATENT OFFICE.

FRANK G. BIELEFELD, OF CHICAGO, ILLINOIS, ASSIG-NOR TO THE ADAMS & VVES'ILAKE MANUFACTURING COMPANY OF MICHIGAN, OF SAME PLACE.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 365,899. dated July 5, 1887.

Application filed May 12, 1885. Serial No. 165,191. (No model.)

T0 all whom, it may concern:

Be it known that I, FRANK G. BIELEFELD, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification.

In the accompanying drawings, Figure l is a top view. Fig. 2 is a longitudinal section. Figs. 3 and 6, 4 and 7, and 5 and 8 represent details of theinvention, hereinafter described.

Similar letters of reference indicate similar parts in the respective figures.

The object of this invention is to effect an even distribution of atmospheric air` to the burner and a proper adrnixture of the air and gas, whereby au exceedingly steady and hot flame is produced.

A is a horizontal Bunsen tube, communicating at one end with the gas-tube A', which is provided with a cock, a, screwed into a bar, a, forming a part of the Bunsen tube and eX- tending across its open end. rIhe air enters the Bunsen tube above the bara at a, and underneath through the opening b. The other end of the Bunsen tube is provided with Ia burner, B. Y The upper wall or top of the Bunsen tube is provided with a circular aperture, d, and a projection or ring, c, surrounding said aperture. A hollow inverted cone, f, (shown detached and enlarged in Figs. 3 and 6,) is provided with a shoulder, f,'Which fits over the projection e. The cone is provided with a ange, g. Upon this flange rests the ring h, (shown detached and enlarged in Figs. 4L and 7,) said ring being providedwith lugs or feet 7L', which rest upon the ange, and with proj ections z' on the oppositeside. VA cap, k, rests upon the projections t', said cap being shown detached and enlarged in Figs. 5 and 8. The lower or under portion, Z, of the cap is cylindrical, and provided with lateral apertures m, leading from its interior out into thespace existing between the top of the ring h andthe under side of the flange k of the cap. rlhe part Z of the cap is centrally perforated, and, with the conef, is secured to the Bunsen tube by means of a screw-bolt, n, which screws into the boss upon the Linder side of the Bunsen tube.

In operation gas is admitted to the Bunsen 5o tube through the aperture p of the cock a, the air entering through the openings a and I). The gas and `air in a mixed state pass up through the inverted conefand impinge against theconical under side ofthe part Z of the cap k, whence the greater portion is deliected laterally through the spaces formed by the ring h, the under side, k, of the cap le, and the upper side of the flange ga double flame being thus produced all around the side of the burner. 6o At the same time a certain amount of the mixed air and gas escapes through the apertures m m in the crown of thecap, and a flame is thus produced in the central part of the cap 7c, immediately above the head of the bolt n. 65 By this means a most intense heat is effected Without being unduly concentrated at one point, so as to injure the vessel with which it may come in contact.

Having described my invention, I claim- 7o Thelower cone, f, having the ilange g, the cap Lk, provided with a cylindrical center having lateral perforations m, and the intermediate ring, h, having the lower projections, h, and upper projections, t', the said several parts 75 being relatively arranged as described, combined with a Bunsen tube, and the securing bolt n, substantially as described.

In testimony whereof I hereunto set my hand and seal.

` FRANK G. BIELEFELD. [L s] Vitnesses:

WM. N. CAMPBELL, W. HENRY GIB. 

